Betrayer of Worlds

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Betrayer of Worlds

Cover of the first edition.
Author	Larry Niven and Edward M. Lerner
Cover artist	Stephan Martinière
Language	English
Series	Known Space
Genre	Science fiction
Publisher	Tor Books
Publication date	October 2010
Publication place	United States
Media type	Hardcover
Pages	320
ISBN	0-7653-2608-6
OCLC	317928753
Preceded by	Destroyer of Worlds
Followed by	"There is a Tide"

Betrayer of Worlds is a science fiction novel ^[1] by American writers Larry Niven and Edward M. Lerner, set in the Known Space series. It is a sequel to their previous novels Fleet of Worlds, Juggler of Worlds, and Destroyer of Worlds. Set 70 years before Ringworld, it features returning character Nessus, a young Louis Wu, and the rapidly evolving Gw'oth civilization posing a potential threat to the puppeteer Concordance.^[2]